Taking the feature that the energy of the image would gather and spread on four components(LL2,LH2,HL2 and HH2) in the sub-image after first-order GHM multi-wavelet-transform.And by using the color control ability of ...Taking the feature that the energy of the image would gather and spread on four components(LL2,LH2,HL2 and HH2) in the sub-image after first-order GHM multi-wavelet-transform.And by using the color control ability of lαβ color space in color transfer theory(CTT),an information hiding algorithm based on GHM-CTT is proposed.In this way,the robust parameters are embedded in the LL2,the hidden information is set in LH2 and HL2 with RAID4,and fragile sign is set in HH2.The consistence between the embedded data bits' order and the embedded code of the sub-image is improved by using the chaotic mapping and the genetic algorithm.Experimental results indicate that the GHM-CTT can increase the imperceptibility by 15.72% averagely and robustness by 18.89% at least.展开更多
基金supported by the National Defense Fund of China (No. C2720061361)the National Science and Technology of China (No.2008ZX03006)
文摘Taking the feature that the energy of the image would gather and spread on four components(LL2,LH2,HL2 and HH2) in the sub-image after first-order GHM multi-wavelet-transform.And by using the color control ability of lαβ color space in color transfer theory(CTT),an information hiding algorithm based on GHM-CTT is proposed.In this way,the robust parameters are embedded in the LL2,the hidden information is set in LH2 and HL2 with RAID4,and fragile sign is set in HH2.The consistence between the embedded data bits' order and the embedded code of the sub-image is improved by using the chaotic mapping and the genetic algorithm.Experimental results indicate that the GHM-CTT can increase the imperceptibility by 15.72% averagely and robustness by 18.89% at least.
